Jim Chalmers says ‘higher global oil prices flowing through to oil prices in Australia’ are to blame for inflation rising from 3.5%Follow our Australia news live blog for latest updatesGet our breaking news email, free app or daily news podcastInflation has jumped to 4% in the year to August, from 3.5%, as Jim Chalmers was again forced to defend Labor’s economic management amid fears the Reserve Bank will need to hike interest rates again before Christmas.The increasingly embattled treasurer was